The modifications for the 2015 Ford Mustang are proceeding at a rapid clip, even before the car is officially launched to the public. Today, Hennessey announced pricing for its HPE600 and HPE700, as well as the CarbonAero appearance package and HPE+ wheel and exhaust packages.

First up, the HPE600, which gets an upgrade to 620 hp and 595 lb-ft via a 2.3-liter supercharger system and a range of internal engine upgrades. The car also gets unique tuning, badging, floor mats, and more. It starts from $14,950 on top of the price of the Mustang itself. Best of all for California residents, it’s CARB compliant.

Next, the HPE700, rated at 717 horsepower, this Hellcat-killer also packs 632 lb-ft of torque, this time through a 2.9-liter supercharger system. Also included are upgraded fuel injectors, pump, air intake, and more, plus the badging, floor mat, and other upgrades of the HPE600. Price? $17,950.

For those who’d like their 2015 Mustang to look Henessey-bad, whether boosted with an HPE600 or HPE700 package or not, there’s the CarbonAero kit, which adds a unique front splitter, side sills, and rear lip spoiler, for a price of $7,450. Individually, the CarbonAero splitter costs $2,850, the side sills are $2,950, and the rear lip spoiler is $1,750.

Finally, the HPE+ upgrades include a choice of H10 lightweight 19- or 20-inch wheels, installed from $6,950, and a stainless steel exhaust system priced at $2,450